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authorRafał Miłecki <zajec5@gmail.com>2015-03-21 11:45:50 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-03-21 11:45:50 +0000
commitba10454b9115bd876a4c1cbf694d582b87039feb (patch)
tree0065877da06e708bc5052463ca349fcb1a436c1d /target/linux/generic/patches-4.0/070-bgmac-register-fixed-PHY-for-ARM-BCM470X-BCM5301X-ch.patch
parent782e432797d90904bab73fac9f458ac5ad8de1aa (diff)
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kernel: backport bgmac patches
This allows dropping some hacky bcm53xx bgmac patch forcing link state. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 44917
Diffstat (limited to 'target/linux/generic/patches-4.0/070-bgmac-register-fixed-PHY-for-ARM-BCM470X-BCM5301X-ch.patch')
-rw-r--r--target/linux/generic/patches-4.0/070-bgmac-register-fixed-PHY-for-ARM-BCM470X-BCM5301X-ch.patch81
1 files changed, 81 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.0/070-bgmac-register-fixed-PHY-for-ARM-BCM470X-BCM5301X-ch.patch b/target/linux/generic/patches-4.0/070-bgmac-register-fixed-PHY-for-ARM-BCM470X-BCM5301X-ch.patch
new file mode 100644
index 0000000000..472b22b0e7
--- /dev/null
+++ b/target/linux/generic/patches-4.0/070-bgmac-register-fixed-PHY-for-ARM-BCM470X-BCM5301X-ch.patch
@@ -0,0 +1,81 @@
+From c25b23b8a387e7d31f7a74af8e37b61e9e6ebb21 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Fri, 20 Mar 2015 23:14:31 +0100
+Subject: [PATCH] bgmac: register fixed PHY for ARM BCM470X / BCM5301X chipsets
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+On ARM SoCs with bgmac Ethernet hardware we don't have any normal PHY.
+There is always a switch attached but it's not even controlled over MDIO
+like in case of MIPS devices.
+We need a fixed PHY to be able to send/receive packets from the switch.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 34 ++++++++++++++++++++++++++++++++++
+ 1 file changed, 34 insertions(+)
+
+diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
+index 0469f72..efda7cf 100644
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -14,6 +14,7 @@
+ #include <linux/etherdevice.h>
+ #include <linux/mii.h>
+ #include <linux/phy.h>
++#include <linux/phy_fixed.h>
+ #include <linux/interrupt.h>
+ #include <linux/dma-mapping.h>
+ #include <bcm47xx_nvram.h>
+@@ -1330,13 +1331,46 @@ static void bgmac_adjust_link(struct net_device *net_dev)
+ }
+ }
+
++static int bgmac_fixed_phy_register(struct bgmac *bgmac)
++{
++ struct fixed_phy_status fphy_status = {
++ .link = 1,
++ .speed = SPEED_1000,
++ .duplex = DUPLEX_FULL,
++ };
++ struct phy_device *phy_dev;
++ int err;
++
++ phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, NULL);
++ if (!phy_dev || IS_ERR(phy_dev)) {
++ bgmac_err(bgmac, "Failed to register fixed PHY device\n");
++ return -ENODEV;
++ }
++
++ err = phy_connect_direct(bgmac->net_dev, phy_dev, bgmac_adjust_link,
++ PHY_INTERFACE_MODE_MII);
++ if (err) {
++ bgmac_err(bgmac, "Connecting PHY failed\n");
++ return err;
++ }
++
++ bgmac->phy_dev = phy_dev;
++
++ return err;
++}
++
+ static int bgmac_mii_register(struct bgmac *bgmac)
+ {
++ struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
+ struct mii_bus *mii_bus;
+ struct phy_device *phy_dev;
+ char bus_id[MII_BUS_ID_SIZE + 3];
+ int i, err = 0;
+
++ if (ci->id == BCMA_CHIP_ID_BCM4707 ||
++ ci->id == BCMA_CHIP_ID_BCM53018)
++ return bgmac_fixed_phy_register(bgmac);
++
+ mii_bus = mdiobus_alloc();
+ if (!mii_bus)
+ return -ENOMEM;
+--
+1.8.4.5
+